One Less within 10: Vertical Subtraction Worksheet

Students understand that less than indicates subtraction. So they take away the said amount from the given number. They may count back from the given number to get to the result. In one less within 10 worksheet, students get plenty of practice with this concept. As the worksheet uses the column method, it is helpful in getting students toward higher accuracy, especially with bigger numbers and in scenarios where regrouping is required.